Device for calculating machines, accounting machines, writing and like machines



H. K. F. EwALD. 2,107,374 DEVICE FOR CALCULATING- MACHINES, ACCOUNTING MACHINES, WRITING AND LIKE MACHINES Filed Aug. 13, 1935 6 Sheets-Sheet 1 Feb. 8, 1938.

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Feb. 8, 1938. H. K. F. EwALD 2,107,374

' DEVICE FOR CALCULATING MACHINES, ACCOUNTING y l MACHINES, WRITING AND LIKE MACHINES y Filed Aug. 413, 1935 6 Sheets-Sheet 2 i H 'g 2 Feb. 8, 1938. 1 H. K. F. EWALD 2,107,374

DEVICE FOR CALCULATING MACHINES,.ACCOUNTING MACHINES, WRITING AND LIKE MACHINES y Filed Aug. 13, 1935 6 Sheets-Sheet 5 J 75 IW Vezz for;

Feb. 8, 1938. H. K. F. EWALD 2,107,374

v DEVICE Fon cALcuLATING mcarus, AccouNTrNe MACHINES, WRITINGAND LIKE MACHINES Filed Aug. 1s, 1935 s sheets-sheet 4 1 Y 107 I 05 l 100 H. K. F. EWALD 2,107,374 DEVICE FOR CALCULATING MACHINES, ACCOUNTING vFeb.8, 1938.

Filed Aug. 13. 1955 w. 0 7. r w 1T. i P #W n 1 e.E 1 V A K. M .l H. Eli

OG@ .OO OOOOOOOOO OOOOOOOOO OOOO @OOO OOOOO O VOOOOGOG OOOOOOOOO OOOOOOOOO. OOOOOOOOO Feb. 8, 1938. K F. EWALD 2,107,374 DEVICE FOR CALCULATING MACHINES, ACCOUNTING MACHINES, WRITING AND LIKE MACHINES Filed Aug. 13, 1935 6 Sheets-Sheet 6 V/l, A

Patented Feb. 8,1938

., UNITED STATES APii'rlazlyro1=j=lc1;

' I aleman DEVICE Fon CALULATING MACHINES, Ac;-

COUNTING LIKE MACHINES MACHINES, WRITING AND Chemnitz, Germany Application August 13, 1935, Serial No. 36,010 In Germany August 17, 19344 2s claims. (c1. 1217-127) The invention relates to a device for adjusting sheets of paper to any desired line in calculating machines, accountancy machines, Writing and like machines.

The object of the invention is to provide a device of the said kind by means of which the sheets, especially such as are inserted into the machine from the front, can be adjusted accurately, quickly and in a simple manner to a desired line of writing.

Typical embodiments of the invention are i1- lustrated in the annexed drawings, in which:-

Fig. 1 @is a plan of a calculating machine, fitted with a device according to the invention.

Fig. 2 is a section along the line 2-2 in Fig. .1.

Fig. 3 is a s'ection along the line 3-3 in Fig. 2.

Fig. 4, is a section along the line 4-4-in Fig. 2.

Fig. 5 is a section along the line 5-5 in Fig. 4.

Fig.'6 represents another embodiment of the invention and is a section corresponding to v Fig. 2.

Fig. 7 isa section along the line 1-.1 in Fig. '6. Fig. 8 is a section along the line 8-8 in Fig. 6.

Fig. 9 is a plan of another embodiment, tte

to a calculating machine.

Fig. 10 is a section along the line I3-I3 in Fig. 9.

, Fig. 11 is a section along vthe line I4--I4 in Fig. 410.

Fig. 12 is a section along the line I5-I5 in Fig. 1o. f

In Fig. 1, the invention is shown by Way'y of example as applied to a calculating machine. The keyboard `(for example, a full keyboard) is indicated by I, the type bars by 2 and the type characters mountedthereon by 3 (Fig. 2). platen 4 is provided with turning knobs 6 and, preferably, with a feed plate 5 serving to lead the Writing sheets behind the platen. For effecting the forward movement of said sheets, presser rollers-I are provided, which are mounted on levers 9. secured on a rotatable axis 8L Upper presser rollers I0 enable the inserted sheets to be written on almost down to their bottom edge. v

For inserting the sheets of paper in front of -the platen 4, a feed plate II is provided which, when a book-keeping machine of the kind described is employed, is preferably adapted to be swung on pivots I3 by means of lateral arms I2,

' and can be tipped up automatically or by hand f into a top position indicated by-broken` lines in Fig. 2. In its bottom position, the feed plate II forms, in conjunction with the forward portion of the platen 4, a funnel into which one or more Thel sheets of paper can be conveniently inserted from the front. The sheets can be inserted by hand or by mechanical means. Following the feed plate II isa plate l5 for the further guidance of the sheets I4. The plate I5 is bent 5 slightly forward at its front end and is provided with gaps through which presser rollers I6 partially project. Disposed above the plate I5 is another plate I1 ,for the purpose of preventing the front edge of the paper sheet I4 from beingl0 deected during its insertion. The plates I5 and I1 forml a preferably horizontal vpassage in which the sheets I4 are guided during their"con tinued advance. A

. The sheets I4 are held in position for writing by 'the presser rollers I6 which can be pressed against the platen 4 in a convenient manner. 'I'he upperportion of the sheets I4 is pressed firmly against the platen 4 by means of the upturned feed plate Il, or by rollers or other convenient retaining means.

The rear end of the plate I5 is attached to a rod I8. In order to prolong the passage I5, I1 the plate` I5 is succeeded by a plateA I9, facing which is a plate 20 forming an extension of the top plate I1. The plate 20 is divided by meansof longitudinal slits into a number of bars 2|, the ends of which are held together by cross pieces 22, as shown in Fig. 3. The bars 2I are chamfered at their lower edges to prevent the advancing sheets I4 from catching against the said edges and thus becoming checked. -Projecting into the longitudinal slits between the bars 2l are the lower ends of stops 23 designed as flat bars. As shown in Fig. 3, the stop bars 23 are provided with slits 24 through which arev passed'rods 26, or pins mounted in a frame 25. The slits 24 and rods 26 form guides for.the stops 23, to ensure parallel displacement. 'Ihe slits 24 are preferably oblique, thus compelling the stops 23 to become vdisplaced in their longitudinal direction coniointly with their vertical movement. Consequently, the rise and fall of the stops 23 can be effected, in a simple manner, by pushing them in their longitudinal direction. 45 The frame 25 may be provided with'slits 62, for the further guidance of the stops 23.

The longitudinal displacement of the stops 23v is effected by bell-crank levers 29 (Fig. 3), which are pivotally mounted on a rod 30 and abut against the end surfaces of. the stops 23. The forward ends of the horizontal arms of the levers 29 extend under lateral lugs 3l of key stems 32 and 33 which are guided between upper and 55 lower guiding members 3l `and 36 and carry'the keys 34 on their upper-ends. The lugs 3| have an oblique lateral edge .on which bears a locking rail 39, the axisv 38 of which is rotatably mounted in a front wall 19 and a rear wall Il. and pressed against the lugs 3| by a spring 31. 'A release key 40 (Figs. 1l and 2) is attached to thev rear end of the axis n. y

The depression of any convenient key 34 turns a bell-crank lever 29 towards theA left by means of the corresponding lug 3l and thus pushes the corresponding stop bar 23 towards the right against the action of the spring 28. Through the oblique guidance of the stops 23, by means of the slits 24 and pins 26 (Fig. 3), said stops also are depressed, the lower rim of the corresponding stop 23 thereby coming under the-lower edge of the plate 20. In the embodiment shown, the stroke of the key 34 is long enough to enable the lower edge of the stop 23 to pass just as far as the lower plate I9. In this position of the stop bar 23 the check rail 39 bears, under the action of the spring 31, on' the upper edge of the ,lug 3| of the key that has been depressed. so that the spring 28 can no longer return the stop bar 23 towards the rear. The spring 28 cannot return .the adjusted members to their neutral position until another key 34 has been depressed, thereby again causing the check rail 39 to turn towards thefleft, or until a. left turn has been imparted to the check rail 39 by the release key 40.

'Ihe connection between the keys 34 and the stops can also be effected in a positive manner by springs in such way as to cause the stop bar 23 to abut against the lower plate I9 before the check rail 39 is in the locking position. This result can be obtained, for example, by enlarging the lateral lugs 3| and disposing springs between the keys 34 and stop bars 23. more powerful than the springs 28. In such a case if a key 34 is depressed none of said springs is deected until thecorresponding stop bar 23 bears on the lower plate I9. With this construction, a satisfactory bearing of the stop bars 23 on the lower plate I9 can be obtained with certainty, even when the individual members are designed' with L insuflicient precision. In order not to impair the clarity of the drawing, such a possible arrangement has not'been illustrated in this embodiment.

In Fig. 2, a key 34a is shown in the depressed position, the corresponding stop bar 23a being in its bottom position.` A sheet of paper I4 inserted over the front feed plate I I can thus be passed into the passage I5, I1, I9, 20 as far as the stop bar 23a, which corresponds to a definite line on the sheet I4. In the same manner as-a stop bar 23a can be depressed by the key 34a, the corresponding stop bars can also be depressed, in each case, by the other keys 34, so that by means of the present device the inserted sheets I4 can be set to any desired line of writing. The keys 34 are preferably provided with cyphers or characters eachof which corresponds to the line to which they set the sheets I4.

'I'he front passage members Il, I1 (Fig. 2) adjacent to the platen 4 are tted with stop bars 4I which, as shown in Figs. 4 and 5. are guided by lateral combs 5I), 5I and also by slits and pins 4I. 'Ihe stop bars 40 lare held downwards towards the left by springs 42. The upper edges of the stop bars 40 are provided ,with a plurality of projections 43 which in the neutral position remain below the upper edge of the plate I5 and thus allow the sheets I 4 free passage through the opening I5,

Said springs are .preferably l1. owing to the oblique sms and the pms 4 l, the v stop bars 40 can be pushed up, parallel and towards the right, against the action of-the springs 42.' In the present instance the displacement is eilected by levers 52 bearing against the left surfaces. and loosely rotatable on an axis 53, said levers being actuated bythe key stems 45, 48 of the keys 34 adjacent to the platen 4. During the displacement of'a stop bar 40, its projections 43 pass through corresponding gaps 46 in the plate I5, and therefore stop the sheet I4 that has been inserted in the passage I5, I1 directly said sheet has reached the desired line of writing. Consequently, the front stop bars 46 enable the sheets I4 to be adjusted quickly and reliably to any writing line in the same manner as is done by the stop bars 23 of the rearward portion I9, 20 of the passage. 'Ihe stops 40 can be brought close up to the impression point of the platen as to enable writing to be applied to the sheets I4 to near their lower edge.

In Figs. 4 and 5, the gaps 46 and projections .43 for successive lines are relatively offset, thus facilitating the passage of the sheets I4 over the plate I5.

After one or more sheets have been inserted, the presser rollers I 6 are moved, automatically or by hand, from their bottom 'position towards the platen 4, in order to press the sheets against the latter. This is preferably performedvby a further movement of the same control member which lifts or detaches the rear presser rollers 1 during part of its stroke.

The key stems 45, 46 .are provided with lateral lugs 41, which are connected with the check rail 39 and release key 40 in the samev manner as is done by the lugs 3i of the key stems 32, 33 in Fig. 3.

The pins 44I and the axis 53 of the lever 52 are mounted on a frame 49 which forms with the combs 50, 5I a complete unit and, as shown in Figs. 2 and 3, is detachably connected by means of brackets 15 te side Walls 13, 14 mounted on the base plate 64 of the paper carriage. Consequently, the frame 49 together with the stopfbars 40 and levers 52 can be bolted on to and removed from the paper carriage as a structural unit.

The box-shaped frame 25 (Figs. 2 and 3) is provided with lateral flange members 54, over which a cover plate 55 is laid. Nuts 56, screwing on to threaded bolts 51 on the side walls 13, 14 of thepaper carriage, pass through openings in the anges 54 and cover plate 55. The buttons6l, set on an upper extension of the nuts 56, are secured by pins 60. The nuts 56, 6I are also provided with lower rims 59, so that by unscrewing and lifting the nuts the frame 25 and the inbuilt stop rods 23 can be easily taken off the paper carriage as Aa complete unit.

'I'he frame 25 is also connected with the plate 20, lateral fillets |63 (Fig. 3) and bottom plate I9. In the example shown, the'plate I9 rests on a rectangular rider frame 63inserted in an opening in the base plate 64 of the paper carriage. As shown in Figs. 1, 2 and 3, the frame 63 is provided with notches 52 into which fit correspondingly shaped'ends of rider carriers 65. Said carriers 65 are adapted for the insertion of riders or paper-carriage stops 66 (Fig. 1) by means of which the various counting mechanisms of the calculating machine can be selected and set in accordance with their tasks, such as addition, subtraction or non-addition. 'Ihe control members coacting with the"y paper-carriage stops 65, in the present case, double-armed levers 68 Fig. 1), are

disposed between the guides 61- (Fig. 2) of the pa` u per carriage and are provided with connections to the corresponding control arrangements in the interior of the calculating machine. The entire detachable top part, consisting of the frame 25, with the stop bars 23, fastening device 56, 6I, plate 20 and plate I9, thus forms an easily removable top cover for the rider frame 63, the riders 66 and rider carriers 65 being, therefore, easily accessible. The said upper cover of the rider frame 63 also serves to secure the riders or paper-carriage stops 66, resting on the plate I9, in their position of adjustment for the time being.

As shown in Fig. 3, an angular slider 69 engages, with its horizontal limb 69, under the left end of the plate I9. According to Fig. 2 the vertical limb of the slider 69 is provided, at both ends, with slits 10 engaging pins 1 I. On the under side of the slider 69 are mounted springs 12 which continuously tend to raise the slider 69 from Athe position shown. On the removal of the frame and plate I9, the slider 69 is free to rise under the action of said springs 12. In its top position, the slider 69 applies itself, by means of its vertical limb, in front of the lower arms of the bell-crank lever 29, so that, after the removal ofthe frame 25, springs 28 and stop bars 23, the said levers 29 cannot turn towards the left.

In addition to the two interior side walls 13, 14 the paper carriage has two outer side walls 16, 11. In the embodiment shown the side walls 16, 13 are detachably connected to the base plate 64 of the papercarriage-as indicated, by bolts 18, in Fig. 3. The guide plates 35, 36 for the key stems 32, 33 and 45, 48 are connected to the side walls 16, 13 by means of lateral iianges. The rotatable rod 38 is mounted in a front wall 19 and a rear Wall 80, these walls being attached (Fig. 2) to the side walls 16, 13. The bearings 8| for therod 30 carrying the bell-crank levers 29, are mounted on the side wall 13. Consequently, after the left journal of the platen 4, and the screws 18 have been unscrewed, the entire portion containing the keys can be removed from the paper carriage as a complete structural unit. ,d

The device according to the invention is shown, fitted to a calculating machine with carriage guides 61, disposed in a horizontal plane independently of the main portion of the machine, on a frame 82 set up on the base plate of the machine. The arrangement is naturally also applicable in the case of obliquely or vertically disposed paper carriage guides. The arrangement can also' be applied when the platen or other means for receiving the impact of the impression is not adapted to slide in the longitudinal direction of the lines of writing.

Figs. 6-8 show another embodiment of the in'- vention. As shown in Fig. 8, the keys |61 arranged on a paper carriage are connected with oblique surfaces 90 of bars 88, by pins 85 on the key stems 86, 81. The bars 88 are guided, so as to be longitudinallyl displaceable in corresponding gaps in guide plates 94, I 1|. .The oblique surfaces 90 of the bars 88 are kept pressed against the pins by springs |10 When a key is depressed against the action of a spring 89 the bars 88 in Fig. 8 can, therefore, be moved towards the right. During. this movement, curved notches |90 in the bars 88 release pins 9| on sliders or sto-ps 92, so that said stops 92 can descend by gravity or by means ofA springs 93, in guides in the channel-section guide plates 94. In descending, the lower ends of the stops 92 enter the passages formed by the plates 95 and 96. The notches |90 are preferably' of somewhat greater between the stops 92 and the plate 96, and thus, preventing an inserted sheet from being unintentionally pushed under the stops 92by reason of any unevenness of the plate 96. The latter can. of course, also be provided with gaps 20| or the like, to accommodate the lower ends of the stops 92, as shownby way of example on the right of Fig. 8.

In such of the keys |61 (Fig. 6) as are situated nearer the platen 4, pins 91 are provided on the key stems 98, 99 (Fig. '1) below lateral lugs |0| of the stop bars |00. By this means, if a key |61 and the corresponding pin 91 is depressed, the stop bars |00 which are guided by means of slits and pins |02 and in lateral racks |03, |04 can descend by gravity in order to retain the inserted sheet at a desired line, for example in the forward portionv of the passage formed by the plates |95, |96 and a slotted plate |69. The descent of the stop bars |00 can also beeffected by the action of springs or other suitable means.

When several diierent lines are to be written simultaneously `on several sheets of paper, it is preferable, in the rst place, to insert such Asheets as are to penetrate furthest into the passage |95, |96, 95, 96 and lead them up to the corresponding stops. front and to serve the sheets that are to be inserted less deeply are then actuatedby means of the corresponding keys, and the said sheets are inserted as far as these last stops. 'I'hrough this later adjustment of the front stops, the rear stops, which were actuated in the rst place can be retained in their operative position by means of their keys. sheets to be inserted at dierent depths into the passage, it is of particular advantage to' employ such stops as-like the stops .92 in Figs. 6 and -encounter the sheets I4 in the passage 95, 9 perpendicularly in each direction.

Figs. 9-12 represent a further embodiment of the invention. In this case, stop bars I4| according to Figs. 9-11 and |56 according to Figs. 10-12 are arranged on a laterally movable paper carriage. In Fig. 9, the keys |21 allotted to the stop bars are mounted on the left of the keyboard |68 of the calculating machine. connection between the keys |21 and the stops |4I, |56 is established by means of Bowden wires arranged in four groups |3||34 (Fig. 9). Three of these groups |3I, |32 and |33 lead to a casing |28 (Figs. 9 and 10) mounted in rear of the paper carriage and thence, by way of an axis |29, to a housing |35 running horizontally over the paper carriage and adapted to tilt about the axis |29. In this housing |35, the ends of the sheathing |36 of each of the Bowden wires is 'attached (according to Fig. 11) to a rail |31 secured on the housing |35, whilst the ends of the Bowden wires |38 are connected to levers or transmission members |39. The members |39, which are rotatable about an axis |19, carry on their lower arms rollers |40 disposed (Figs. l0, 11) above stop bars |4|. Moreover, by means of springs |42 engaging their upper arms, the members |39 can be pressed against stops |43 in order to keep the rollers |40 of such of the members |39 as are in the neutral position forA the time being out of contact with the stop bars |4| moved with the paper carriage. In the present example, the transmission mem.- bers (Fig. 9) are so arranged as to come into position about midway of the stop bars |4| when the paper carriage is in central position.

In this example the l The stops that are situated nearer theA For such operations with several The ends of the stops |4| are guided in slits |44 in a guide member |45, and on rods |41 on the guide member |45 by slits |46. In the position shown, the stops |4| are drawn towards the right ends of the'slits |46 by means of springs |43. Bymeans of its under portion |49, which is provided with a plurality of slits for guiding the stop bars |4|, the guide member |45 forms the upper boundary of a passage, the depth of which is determined by lateral fillets |63. 'I'he lower boundary of the passage is formed (Figs. 10, V11) by a bottom plate |33. 'I'he forwardextension of the plate |33 consists of a plate |32 which is attached toa pin |3| and faces an upper plate |33.

By depressing any convenient key, the cci-responding stop bar |4|a can be depressed (Fig. 10) by means of the appropriate Bowden wire and transmission member |39a, so that it comes to bear on the bottom plate |80. As the result of this adjustment, a sheet of paper inserted at the feed plate and platen 4, can vbe fed up to the lowered stop |4|a.

The Bowden wires comprised in the cable |34 (Fig. 9) `are attached (Fig. 12) with their guide sheaths |53 to a fixed holder |5|. The corresponding Bowden wires |52 are connected to levers |54, which are 'rotatable about a iixed axis |53 and provided with rollers |55 (Figs. 9, 10 and 12) According to Fig. l0, the rollers |55 lie in thel same plane as stop bars |56, which are guided by racks |51, |53 and by slits |59 and pins |63. They are kept drawn-downwards by means of springs The stop bars |56 are provided with projections |34, which are held in a neutral position, in the same manner as in Fig. 5, below gaps |36 in a plate4 |82. -By actuating a key, each stop bar |56, with its projections |34, can be moved obliquely upwards, through-the agency of a Bowden wire |52 and a transmission member |54, in order to maintain the sheet that is to be inserted at the line desired for the time being in the passage |32, |33.

The pins or rods |6||and a rod |62 serving for the suspension of the springs |6|, are disposed,

together with the guide racks |51, |58, in a frame |66, which is detachably secured to brackets |65 on the paper carriage by means of screws |64;

The connection between the keys |21 and stops |4| or |56 is not restricted to Bowden wires, but can also be eiected, for example, by means of electrical conductors, such as by employing electromagnets, or by any other convenient means. The keys |21 can also, of course, be equipped with a release device, after the manner of the 'release device 3|., 33, 43 or'similar means. The

device according to the invention can also be designed in such a manner that the stops against which the sheets strike Aon insertion are located in front ci the platen, in which event a feed plate corresponding to the plate can be mounted at any other convenient position, for example in rear of the feed plate 5.

I claim as my inventiom- 1. In calculators, typewriters, bookkeeping and similar machines a device for setting writing sheets to any desired line. comprising adjustable stops one for each line selective to be encountered by the writing sheets when fed and adjusting means, one for each stop, cooperating with said stops for bringing them into operative position.

2.A device according to claim 1, wherein the stop adjusting means are in the form of keys.

3. A device according to claim 1, wherein the stops are designed as bars.

passage serving to guide the writing sheets.

6. A device according to claim 1, wherein kthe stops are constructed as bars and controlled by guides during their motion from inoperative to operatne position. v

7. A device according to claim 1, wherein the stop adjusting means are constructed as keys and laterally arranged in rows on the paper carriage. 8. A device according to claim 1, wherein the stop adjusting means are constructed as keys laterally arranged in rows on the paper carriage and interconnected by a common locking and releasing means for causing the yrelease of previously adjusted keys by the depression of any desired key.

9. A device according to claim 1, wherein the stop adjusting means are constructed as keys laterally arranged in rows on the paper carriage and releasable by a common release member at the actuation of which all adjusted keys return to inoperative position.

10. A device according to' claim 1, wherein the stop adjusting means are constructed as keys laterally arranged in rows on the carriage and connected with bell crank levers for transmitting the motion to the stops.

11. A'device according to claim 1, wherein the stop adjusting means are constructed as keys laterally arranged in rows on the carriage and connected with bell crank levers for transmitting the motion to the stops and springs eilectA the return of the stops after release of the keys.

12. A device according to claim 1, wherein between the stops' means having inclined surfaces guide the sheets.

13. A device according to claim 1, wherein between the stops means having inclined surfaces guide the sheets, said stops being withdrawn when in inoperative position between said sheet guiding means.

14. A device according to4 claim 1, wherein the stops in operative position extend into a sheet guiding passage and are arranged above said passage.

15. A device according to claim l, wherein the stops cooperate with a sheet guiding passage and, preferably in the part located below the platen, are arranged below said passage.

16. A device according to claim 1, comprising at least one structural unit completely assembled having adjustable members and being detachable as a whole.

17. A device according to claim 1, comprising at least one structural unit completely assembled having adjustable members and being detachable as a whole and automatically acting blocking means for holding the adjustable members in position during removal and insertion of the structural groups. i

18. A device according to claim 1, wherein the stop adjusting means are constructed as keys and one or several structural groups having adjustable and xed members and being removable as a whole are provided and automatically acting blocking means hold the adjustable members in position during removal and insertion of the structural groups, said keys being contained in a removable structural group.

19. A device according to claim 1, wherein the stop adjusting means are constructedas keys,

the stops being disposedon the paper carriage and the keys on a member that is not moved with the paper carriage.

20. A device according to claim 1. wherein the stop adjusting means are constructed as keys, the stops being disposed o n the carriage and the keys near the machine keyboard.

21. A device according to claim 1, wherein the stop adjusting means are constructed as keys, the stops being disposed on the carriage and the keys forming part of the machine keyboard.

22. A device' according to claim 1. wherein the stop adjusting means are constructed as keys opewrtively connected with the stops by Bowden 23. A device according to claim 1, wherein the stop adjusting means are constructed as keys operatively connected with thc stops by Bowden wires connected with .adjustable transmission members whose motion is transmitted to the stops on the carriage.

24. A device according to claim 1, wherein the stop adjusting means are constructed as keys operatively connected with the stops by means connected with adjustable on members. said on members being mounted in a common housing.

25. A device according to claim 1, wherein the stop adjusting means are constructed as keys operatively connected with the stops by means connected with adjustable tron members and intermediate means cooperating with said members for transmitting motion thereof to the stops. the points ot application oi' the transmission members lying about midway of the intermediate means, when the paper carriage is in its central position.

26. A device according to claim 1, wherein the stop adjusting means are constructed as keys differing in spacing from the spacing o! thestops.

27. A device according to claim 1, wherein a member is provided for covering control means adjusted toeiect different functions of the machine, said covering member securing the control means in working position and being detachable with the device.

28. A device according to claim i, wherein the stops. when in operative position. penetrate into gaps of the opposite walls of the sheet guiding geto prevent the advance ot writing sheets through the passage with certainty.

HEINRICH KONRAD FRIEDRICH EWAIZD.` 

